A retrospective real‐world experience of immunotherapy in patients with extensive stage small‐cell lung cancer

Author:

Qiu Guihuan1ORCID,Wang Fei12,Xie Xiaohong1,Liu Ting1,Zeng Chen1,Chen Ziyao1,Zhou Maolin1,Deng Haiyi1,Yang Yilin1,Lin Xinqing1,Xie Zhanhong1,Sun Gengyun2,Zhou Chengzhi1ORCID,Liu Ming1

Affiliation:

1. Pulmonary and Critical Care Medicine, Guangzhou Institute of Respiratory Health, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, State Key Laboratory of Respiratory Diseases The First Affiliated Hospital of Guangzhou Medical University Guangzhou China

2. Department of Respiratory and Critical Care Medicine The First Affiliated Hospital of Anhui Medical University Hefei China

Abstract

AbstractBackgroundThe treatment of extensive stage small‐cell lung cancer (ES‐SCLC) has only made modest progress in the past decade, with two immune checkpoint inhibitors (ICIs), atezolizumab and durvalumab, approved for the treatment of SCLC by January 2022. However, currently, there is limited real‐world data on ES‐SCLC patients received immunotherapy.MethodsWe retrospectively collected and analyzed the demographic and treatment data of ES‐SCLC patients at the First Affiliated Hospital of Guangzhou Medical University from January 2017 to January 2022. Survival and prognosis information was obtained through follow‐up.ResultsA total of 353 ES‐SCLC patients were included, of which 165 received immunotherapy combined with chemotherapy as the first‐line (FL) treatment (chemo‐immune group), and 188 received chemotherapy (chemotherapy group). The objective response rate (ORR) and disease control rate (DCR) of patients receiving immunotherapy as the FL treatment were better than the chemotherapy group (76.97% vs. 48.40%, p < 0.001, and 83.03% vs. 68.09%, p < 0.001). Moreover, the progression‐free survival (PFS) and overall survival (OS) of ES‐SCLC patients receiving immunotherapy as the FL treatment were better than the chemotherapy group (6.7 months vs. 5.1 months, p < 0.001, and 12.5 months vs. 11.2 months, p < 0.001). Furthermore, the OS of ES‐SCLC patients who received immunotherapy as second‐line treatment was better than that in the chemotherapy group (15.9 months vs. 12.9 months, p = 0.036).ConclusionICIs combined with chemotherapy as the FL treatment could be beneficial to the ORR, DCR, PFS, and OS of ES‐SCLC patients. Furthermore, ES‐SCLC patients can benefit from ICIs in the second‐line treatment, even if they had not received ICIs in the FL treatment.

Funder

Chinese Society of Clinical Oncology

Publisher

Wiley

Subject

Cancer Research,Radiology, Nuclear Medicine and imaging,Oncology

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